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Effect of Porosity on Surface Catalytic EfficiencyThis paper describes the effect of surface porosity of thermal protection materials on surface catalytic efficiency using test data taken from both arc-jet and side-arm reactor facilities. Relative surface porosity of the samples varied from 6% to 50%. Surface porosity was measured using a flow apparatus and Bernoulli equation. The surface catalytic efficiency of the materials was calculated using aerothermodynamic, and kinetic theories. The catalytic efficiency of the materials are compared at surface temperatures between room temperature and 2500 F. The data are presented in the form of graphs and tables.
Document ID
20020008205
Acquisition Source
Ames Research Center
Document Type
Conference Paper
Authors
Stewart, David A.
(NASA Ames Research Center Moffett Field, CA United States)
Pallix, Joan
(Thermoscience Inst. Palo Alto, CA United States)
Rasky, Daniel J.
Date Acquired
August 20, 2013
Publication Date
January 1, 1994
Subject Category
Nonmetallic Materials
Meeting Information
Meeting: AIAA 29th Thermophysics Conference
Location: San Diego, CA
Country: United States
Start Date: June 19, 1995
End Date: June 22, 1995
Sponsors: American Inst. of Aeronautics and Astronautics
Funding Number(s)
PROJECT: RTOP 232-01-04
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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